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ETRTO sizes apply to rims and tyres for vehicles of all types, including bicycles. The great advantage of ETRTO sizing is that it is unambiguous; previously, nominal dimensions were used which were interpreted in different ways by different countries and manufacturers - a problem for the end user.
As the early motorcycle industry progressed, larger tyre sizes accompanied larger engine displacements, so that by 1909–1914, 2 + 1 ⁄ 4 in (57 mm) section, 26 in (660 mm) diameter tyres were used on 250 to 350 cc (15 to 21 cu in) motorcycles, and 2 + 3 ⁄ 8 to 2 + 1 ⁄ 2 in (60 to 64 mm) section tyres appeared on motorcycles with ...
Tyres were wider than usual for the time, with a chunky tread on the rear wheel, featuring a red line around the sidewall. In 1969 the Raleigh Chopper was launched on the UK market. This was a triple launch for Raleigh with the Mk1 Chopper produced until 1972.
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A motorcycle riding gear store. Motorcycle riding gear, or kit (), is specialized clothing and equipment worn by motorcyclists.It usually serves multiple purpose at once, including crash injury protection, deflecting sun, precipitation or debris, keeping the rider warm, cool or hydrated, increasing visibility, expressing the rider's style or social identity, stowing cargo, and as a platform ...
Prior to 1964, tires were all made to a 90% aspect ratio. Tire size was specified as the tire width in inches and the diameter in inches – for example, 6.50-15. [29] From 1965 to the early 1970s, tires were made to an 80% aspect ratio. Tire size was again specified by width in inches and diameter in inches.
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